Bosch Rexroth ctrlX SAFETY - STO Function in the Case of Selection Via Active Safety Units

7.1.2 STO function in the case of selection via active safety units
Dual-channel wiring
Plus-plus-switching safety unit
When the safety function is selected via a plus-plus-switching safety unit, the
following errors have to be detected by the OSSD outputs:
● Short circuit of the selection signals with 24 V
● Short circuit between the two selection signals
Fig. 7-4: STO function with active safety unit (plus-plus-switching outputs)
Single-channel wiring
When the safety function is selected via a safety unit, the short circuit with
24 V has to be detected by the OSSD output.
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Examples of application
ctrlX SAFETY "Safe Torque Off" Safety Option in ctrlX DRIVE
Bosch Rexroth AG R911383774_Edition 03